Ipswitch WhatsUp Gold User Guide - Ipswitch Documentation Server

Ipswitch WhatsUp Gold User Guide
Configure System Thresholds
Sets the upper limit threshold on system properties that when exceeded causes the monitor
to fail.
Property Definition
Context switches The rate of switches from one thread to another, per second. Thread
switches can occur either inside of a single process or across processes. A
thread switch can be caused either by one thread asking another for
information, or by a thread being preempted by another, higher-priority
thread becoming ready to run. Windows NT uses process boundaries for
subsystem protection, in addition to user and privileged modes. Thus
some work done by Windows NT on behalf of an application appears in
other subsystem processes in addition to the privileged time in the
application. Switching to the subsystem causes one context switch in the
application thread. Switching back causes another context switch in the
subsystem thread.
CPU queue length Number of threads in the processor queue. There is a single queue for
processor time even on computers with multiple processors. Unlike disk
counters, this property counts ready threads only, not threads that are
running. A sustained processor queue of greater than two threads
generally indicates processor congestion. This property displays the last
observed value only; it is not an average.
System calls Combined rate of calls to Windows NT system server routines by all
processes running on compute, per second. These routines perform all of
the basic scheduling and synchronization of activities on the computer,
and provide access to non- graphic devices, memory management, and
name space management. This property displays the difference between
the values observed in the last two samples, divided by the duration of the
sample interval.
Configure Links Thresholds
You can set thresholds on the following Links properties. For each of these properties, you set
the value that is the upper limit, which when exceeded causes the monitor to fail.
Property Definition
Number of messages The number of messages that are waiting for transmission across the
link.
Size of queue The total size of the messages in the link, in Kilobytes.
Increasing time The amount of time, in seconds, that the number of messages
waiting to be transferred by the link has been increasing.
Oldest message The elapsed time, in minutes, since the oldest message that is still
waiting to be transmitted was received into the link.
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